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Nominal number - Quiz
Contributed by: Ball
  • 1. What type of number is primarily used to identify specific entities without conveying other information?
A) Prime number
B) Nominal number
C) Ordinal number
D) Cardinal number
  • 2. Which of the following is listed as an example of a national identification number?
A) Social Security number
B) Mathematical constant
C) Serial key
D) Page number
  • 3. How are bank codes and sort codes classified in the text?
A) Telephone numbers
B) Postal codes
C) Car model numbers
D) Routing numbers
  • 4. What is an example of a routing number mentioned in the text?
A) ZIP code
B) ABA routing transit numbers
C) IP address
D) BMW model number
  • 5. Are postal codes always numeric globally?
A) No, they only use Roman numerals
B) Yes, they are always strictly numeric
C) No, other nations often use alphanumeric systems
D) Yes, they follow a universal numeric standard
  • 6. What is the hierarchical structure of a North American telephone number?
A) Prefix + Suffix + Area Code + Country Code
B) Area Code + Country Code + Suffix + Prefix
C) Country Code + Prefix + Suffix + Area Code
D) Country Code + Area Code + Prefix + Suffix
  • 7. What kind of numbers are assigned sequentially?
A) ZIP codes
B) Serial numbers
C) Bank codes
D) IP addresses
  • 8. How does the text classify numbers assigned sequentially?
A) Rational numbers
B) Nominal numbers
C) Cardinal numbers
D) Ordinal numbers
  • 9. Which car manufacturers are mentioned as using plain numbers for model names?
A) BMW or Peugeot
B) Honda or Nissan
C) Ford or Toyota
D) Tesla or Volvo
  • 10. What is the defining characteristic of a narrowly defined nominal number?
A) It conveys no information other than identity
B) It conveys geographical information
C) It indicates a specific physical measurement
D) It follows a strict sequential order
  • 11. What is a common source of narrowly defined nominal numbers in computer applications?
A) Dynamic IP addresses
B) Hardware serial numbers
C) User passwords
D) Encryption keys
  • 12. Which protocol assigns dynamic IP addresses?
A) Internet Message Access Protocol
B) File Transfer Protocol
C) Hypertext Transfer Protocol
D) Dynamic Host Configuration Protocol
  • 13. What are considered 'everyday' examples of narrowly defined nominal numbers?
A) Sports squad numbers
B) ZIP codes
C) Driver's license numbers
D) Train route numbers
  • 14. What happens when a club 'retires' a number?
A) The number is sold to the public
B) The number is changed to a different format
C) The number is no longer issued to new players
D) The number is used for a new player immediately
  • 15. In the mathematical context of bijections, what does it mean for a mapping to be injective?
A) Numerals can be shared by multiple entities
B) Different entities have different unique numerals
C) Every entity has a single numeral
D) Every numeral corresponds to an entity
  • 16. Why is adding or subtracting ZIP codes considered meaningless?
A) ZIP codes cannot be converted to integers
B) Subtraction is mathematically impossible for ZIP codes
C) The numbers are too large to calculate
D) The resulting value does not serve as a valid identifier
  • 17. In the mapping of nominal numbers, what does 'surjective' imply?
A) Entities and numerals change over time
B) Every numeral in the set describes an entity
C) Each entity has a null amount of numerals
D) Multiple entities share the same numeral
  • 18. What does the word 'nominal' mean in its original sense?
A) Sequence
B) Quantity
C) Measurement
D) Name
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